Method of printing on cellophane or the like



Dec. 20, 1932. A, El ENa R 4 1,891,323

METHOD OF PRINTING 0N CELLOPHANEOR THE LIKE Filed April 3. 1931 2" Sheets-Sheet 1 INVENTOR Dec. 20, .1932. A E|5ENBERG 1,891,323

" METHOD of PRINTING ON GELLOPHANE OR THE LIKE I Filed April 5, 1931 4 2 Sheets-Sheet 2 A TTORNE Y Patented Dec. 20,

UNITED STATES PATENT OFFICE OI BROOKLYN, NEW YORK, ASSIGNOB TO CONTINENTAL mores OOBIORA'IION, OF NEW YORK, N. Y., A. CORPORATION OF NEW YORK nTKOD OF PRINTING ON CELLOPHAIN'E OR THE LIKE Application am April a, 1931. Serial at. 527,898.

This invention relates to a method of printing on thin hi hly glazed transparent paper, such as cellop ane, and more particularly on the moisture-proof variety of such paper One of the objects .of the invention 1s to produce a pigmented area or areas upon the surface of such paper so that printing may be applied thereto.

Another object of the invention is to produce a label or the like having a cellophane base.

A further object of the invention is to produce a moisture-proof cellophane wra per or the like for various articles of merc andise having a pigmented area with printing thereon. Other ob'ects and novel features of my invention 1 become more apparent as the specification proceeds.

The disclosure made the basis of exemplrfying the present inventive concept suggests a practica embodiment thereof but the invention is not to be restricted to the exact details of this disclosure and the latter, therefore, 26 is to be understood from an illustrative rather than a restrictive standpoint.

In the drawing forming a art of this specification, wherein similar re erence characters are used to indicate corresponding parts 80 throughout the several views,

Figure 1 is a face view of a section of cellophane paper with pigmented areas applied thereto;

Fi re 2 is a similar view showing a print- 85 ed la 1 on one of the said pigmented areas; Figure 3 is asectional view on line 3-3 Fi re 1;

igure 4 is a similar view on line 4-4 Figure 2;

Figure 5 is a face view of a cellophane wrapper or wall thereof having a label 1mpressed thereon by my improved process; and Fig. 6 is a diagrammatic view showing the heated dies applied to the igment paper when superposed upon the ce ophane.

Referring now to the drawing in detail, 10 indicates a sheet of highliyl glazed moisture proof aper, such as cellop ane, having pigmente areas 11, 12 and 13. These areas are in the shape of label designs and are produced per, the heat softening the pigment on the aper and transferring same on to the sur ace of the cellophane.

It is to be understood that in transferring the pigment to the cellophane sheet, either individual or gang dies may be used, the said gang dies having either a multiplicity of areas of the same design or areas-varying in design. The pigment paper 18 used is composed of a paper ase and a pigment plus an adhesive which softens at certain temperatures, so that when a heated die 20 is pressed on the pigment paper which is laid over the cellophane, the impression will be transferred to the cellophane, producing a surface on which printin ink will adhere. 7

he amount of heat required to transfer the pigment from the paper to the cellophane depends upon the characteristics of the pigment, some pigments requiring but 40 or 50 degrees Fahrenheit, while others may require as high as 200 degrees, or more. 7

The film of pigment thus deposited on the cellophane is very thin and the cohesion-between the said elements is so perfect that no difference in the thickness between the filmed and unfilmed cellophane is perceptible toythe naked eye. I desire it understood that I do not limit myself to the use of any particular pigment or adhesive, as numerous such pigments and adhesives may be used. The said pigments may include (for instance) aluminum hydrate, precipitated barium sulphate, lead carbonate. In fact any pigment used in the making of paint may be employed, and theadhesive may include (for instance) glucose, Acacia, or Irish moss. These pigments, when transferred to the cellophane, actas a base upon which to print and to absorb the printing ink.

One type of pigment paper used comprises a fine thin paper which is covered with a 95 mixture of the desired pigment in powder form, water, adhesive, and a small quantity of glycerine, gelatine and a minute quantity of oil, preferably castor oil.

Some of the advantages derived by using 100 my improved method of printing on cellophane are, a highly eflicient absorbent base on the cellophane upon which the printing will clearly stand out, and no loss time is 5 sustained, as the pi mented areas are substantially dry -imm 'ately uponbeing provided upon the cellophane.

After the pigment has been transferred to v the cellophane the pi niented areas ma be printed on. In: the rawing I have ustrated the pigment as being white. However,

the said pigment may be of any desired .color.

Figures 2 and 4' of the drawing, I have shown the area 11 as printed upon and hav- 15 ing a border 15 yellow or gold in color, and

a red central portion '16 bearing a trade-mark indication 17 printed in any desired color. The areas 12 and 13 are similarly printed on. In Figure 5 I have shown the cellophane sheet 10 m the form of a wrapping for cigars or the like, having the trademark or brand 18 of the cigar printed thereon, thus doing away with the label usually applied to the cigar. Instead of a wrapping for a cigar, the sheet 10 may form -one wall of a bag for candy or other merchandise.

Wherever in the specification and claims I employ the term printing, I desire it understood that lithographing is to be included.

From the foregoing, it will be seen that I have provided a label having a highly glazed and transparent water-proof base, such as cellophane, and a pigmented area adapted to be printed thereon, and the method for producing same.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The process of printing on cellophane,

which consists in first applying a igment paper thereto, then applying heated dies to certain areas of the pigment paper, removing the pigment paper, and then printing upon the pigmented areas. f

2. The process of printing on cellophane,

which consists in first applying-a pigment paper thereto, then applying heated dies simultaneously to a plurality of areas of the pigment paper, removing the pigment paper,

and then printing simultaneously upon all of the said pigmented areas.

ABRAHAM D. EISENBERG. 

